High-efficiency flow channel plate heat exchanger

Abstract

The application provides a high-efficiency flow channel plate heat exchanger, and relates to the field of plate heat exchangers. The high-efficiency flow channel plate heat exchanger comprises a high-efficiency flow channel plate structure, the high-efficiency flow channel plate structure comprises a heat exchange disc and a concentric annular gasket, the heat exchange disc is arranged on the inner side of a rear sealing plate and a front sealing plate, corrugated edges are arranged on the heat exchange disc through stamping, and the corrugated edges are used for heat rising. After pre-cooling, the secondary high-temperature medium enters the inside of the double-channel cone-shaped spiral body and exchanges heat with the low-temperature medium. The inclined fan-shaped part in the inside of the combined heat exchange disc forms four groups of sheet-shaped spiral channels connected with each other. The angle change of the overall medium flow path is small, the flow direction is smoothly transitioned, the flow angle change is small, the solute precipitation and scaling caused by the sharp change of the flow channel angle are reduced, the shear force of the fluid on the channel is larger, the deposited particles can be better taken away, and the problem that the unstable flow state of the existing plate heat exchanger easily causes the deposition of scaling substances is solved.

Description

Technical Field

[0001] This invention relates to the field of plate heat exchanger technology, and particularly to a high-efficiency flow channel plate heat exchanger. Background Technology

[0002] Plate heat exchangers are a type of high-efficiency heat exchanger consisting of a series of metal plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the various plates, through which heat exchange occurs. The corrugated plates are the core of the plate heat exchanger, which not only increases fluid turbulence and improves heat exchange efficiency, but also enhances the strength of the plates. Plate heat exchangers can be applied to many industrial fields due to their high heat exchange efficiency.

[0003] In existing heat exchangers composed of thin rectangular heat exchange plates, the flow path changes by 90 degrees as the medium flows through the gaps between the heat exchange plates along the inlet and outlet pipes. When the fluid flows through such a curved path, the flow direction and velocity change drastically, which generates strong eddies, secondary flows, and flow separation phenomena. The flow velocity may be significantly reduced on the inner wall of the flow path. This unstable flow state provides ideal conditions for the deposition of scale. Therefore, traditional plate heat exchangers need to be disassembled and cleaned regularly. In existing rectangular plate heat exchangers, the flow paths are completely separated by sealing gaskets. After long-term use, the sealing gaskets will age and loosen, which can easily lead to water leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency flow channel plate heat exchanger to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency flow channel plate heat exchanger, specifically including a flipping mechanism, the flipping mechanism including a frame base, four sets of anchor bolt bases fixedly connected to the bottom of the frame base, the anchor bolt bases having bolt grooves A, a support platform fixedly connected to the top front end of the frame base, a positioning wedge strip integrally formed on the top surface of the support platform, a bolt groove B being formed at the front end of the support platform, and a flipping seat rotatably connected to the top rear end of the frame base, the flipping seat having a through hole for installing bolts in the horizontal direction;

[0006] The enclosed structure includes a rear sealing plate, a front sealing plate, a docking ring, and an inner plate. The top of the rear sealing plate is connected to the flip-up seat by bolts. A bolt groove C is provided at the edge of the rear sealing plate. A handle is fixedly installed on the top of the rear sealing plate. Fixed-distance support frames are fixedly connected to the left and right sides of the rear facade of the rear sealing plate. A rearwardly recessed annular groove A is provided on the front facade of the rear sealing plate. A keyway is provided inside the annular groove A. A clamping bolt is provided inside the bolt groove C.

[0007] The high-efficiency flow channel plate structure comprises a heat exchange disc and a concentric ring-shaped gasket, the heat exchange disc is arranged inside the rear sealing plate and the front sealing plate, and corrugated edges are arranged at the edges of the heat exchange disc by stamping.

[0008] Preferably, the front end of the front sealing plate is fixedly connected with a butt joint plate, and a bolt groove D is formed at the front end of the butt joint plate.

[0009] Preferably, the butt joint ring is arranged inside the ring groove A, a ring groove B is formed at the inner side of the butt joint ring, a positioning key is arranged on the outer curved surface of the butt joint ring, and a butt joint protrusion is arranged inside the ring groove B.

[0010] Preferably, the inner disc is fixedly connected to the inner side of the butt joint ring, four groups of sector-shaped holes are respectively formed at the inner side of each group of the inner disc, a beveled sector-shaped block is fixedly connected to the edge of each group of the sector-shaped holes, and a center hole is formed at the center of the inner disc.

[0011] Preferably, a medium cover is fixedly connected to the inside of each group of the sector-shaped holes, four groups of medium covers are respectively arranged at the outer side of each group of the inner disc, and a high-temperature pipe and a low-temperature pipe are respectively fixedly connected to the outer side of each two groups of the medium covers.

[0012] Preferably, four groups of beveled sector-shaped parts are respectively arranged on the top surface and the bottom surface of the heat exchange disc by stamping, the shape of the beveled sector-shaped part corresponds to that of the beveled sector-shaped block, four groups of sector-shaped planes are respectively arranged on the top surface and the bottom surface of each group of the heat exchange disc, the surface of the beveled sector-shaped part is marked with a turbulence corrugation by stamping, the side surface of the beveled sector-shaped part is connected with the sector-shaped plane, the vertical connecting part between the sector-shaped planes of the upper and lower parts of each group of the heat exchange disc is opened by laser, the remaining connecting part after opening is a vertical supporting part, and the central angle of the beveled sector-shaped block is half of the central angle of the beveled sector-shaped part.

[0013] Preferably, a center ring is fixedly connected to the center of the heat exchange disc, the sector-shaped plane and the center ring are provided with a gasket groove, the shape of the gasket groove corresponds to that of the concentric ring-shaped gasket, the concentric ring-shaped gasket is connected in the gasket groove in an interference fit, and a threaded hole is formed on the inner curved surface of the center ring.

[0014] Preferably, a high-lift angle threaded shaft is fixedly connected to the center hole of the inner disc at the rear sealing plate, and the high-lift angle threaded shaft is threadedly connected with the threaded hole.

[0015] Preferably, a low-lift angle threaded shaft is coaxially connected to the front end of the high-lift angle threaded shaft, and the helix angle and the diameter of the low-lift angle threaded shaft are smaller than those of the high-lift angle threaded shaft.

[0016] Preferably, the low-angle threaded shaft is provided with an elastic closing sleeve outside, the rear half of the closing sleeve is smaller in diameter than the front half, the rear half of the closing sleeve is connected to the inside of the middle hole in an interference fit, the inner disc vertical surface is provided with a base clamp installed by bolts, the base clamp is connected to the high-temperature pipe and the low-temperature pipe through the clamp, the low-angle threaded shaft is provided with two groups of hand wheel nuts outside through threaded connection, two groups of S-shaped pipes are arranged between the opposite medium covers at the rear sealing plate, the rear end of the S-shaped pipe is fixedly connected with a flow-off pipe, and the rear end of the flow-off pipe is threadedly connected with a pipe cap.

[0017] The application provides a high-efficiency flow channel plate heat exchanger.

[0018] 1. By means of the turnover seat, the heat exchanger part can be turned back by 90 degrees, and after being turned back, the fixed-distance support frame is horizontally attached to the ground, so that the heat exchanger part as a whole is in a vertical state, facilitating the next step of disassembling the circular heat exchange fins in a horizontal state. After the pipe cap of the flow-off pipe is vertically turned and disassembled, the medium in the heat exchanger can be completely discharged along the spiral path, and compared with the existing heat exchanger, the degree of emptying is higher, and liquid freezing can be prevented in cold areas during shutdown.

[0019] 2. After the heat exchange discs are sequentially sleeved, the heat exchange discs are rotated along the high-angle threaded shaft at a torsion angle of 16° in units of the thickness of the heat exchange discs, the bottom sector plane of the heat exchange disc is attached to the top sector plane of the adjacent heat exchange disc below, the sector planes supported by the vertical support portions are attached to each other and cooperate with the concentric circular gaskets, and the plate horizontal surfaces are attached to each other and cooperate with the concentric ring-shaped gaskets in the groove, so that the fluid is more strongly isolated by the gaskets compared with the traditional rectangular plate.

[0020] 3. After the heat exchange discs are sequentially rotated and stacked, the inclined sector portions in the combined heat exchange discs form four groups of sheet-shaped spiral channels connected to each other, the high-temperature medium and the low-temperature medium respectively pass through the high-temperature pipes and the low-temperature pipes on the front and rear sides of the heat exchanger to input and perform pure counter-flow heat exchange, compared with the flow angle change of the traditional rectangular plate heat exchanger, the angle change of the overall medium flow path is small, the flow direction is smoothly transitioned, the flow angle change is small, the vortex and secondary flow generated by the same plate structure are weak, a static region is not easily formed, the solute precipitation and scaling caused by the sharp change of the flow channel angle are reduced, the shear force of the fluid on the channel is larger, and the deposited particles can be better taken away, and the scaling rate is further reduced.

[0021] 4. The flow channel bending degree directly reduces the total resistance that needs to be overcome by the transmission pump by reducing the local water head loss, so that the pump provides a lower lift, and finally leads to a reduction in the required power, the equipment power for driving the flow of the heat exchange medium can be reduced, the relative energy consumption is reduced, and the efficiency is improved.

[0022] 5. By blocking the bevel sector block, half of the space of the bevel sector can be closed, so that the inclination angle of the entrance of the spiral sheet path formed by the whole heat exchange disc is more smooth with the angle of the connection of the water inlet and outlet pipeline, and the medium flow in the flow channel is more efficient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0024] The drawings described in the following description are merely related to some embodiments of the present application, and are not a limitation on the present application.

[0025] In the drawings:

[0026] Figure 1 is a right rear side overhead structure schematic diagram of the whole embodiment one of the present application.

[0027] Figure 2 is a three-dimensional exploded structure schematic diagram of the whole embodiment one of the present application.

[0028] Figure 3 is a partial enlarged schematic diagram of A in Figure 2

[0029] Figure 4 is a partial enlarged schematic diagram of B in Figure 2

[0030] Figure 5 is a high-lift angle thread shaft structure schematic diagram of the embodiment one of the present application.

[0031] Figure 6 is a heat exchange disc three-dimensional structure schematic diagram of the embodiment one of the present application.

[0032] Figure 7 is a side cross-sectional structure schematic diagram of the heat exchange disc of the embodiment one of the present application.

[0033] Figure 8 is an inner disc three-dimensional structure schematic diagram of the embodiment one of the present application.

[0034] Figure 9 is a rear sealing plate three-dimensional exploded structure schematic diagram of the embodiment one of the present application.

[0035] Figure 10 is a rear side structure schematic diagram of the whole embodiment two of the present application.

[0036] LIST OF REFERENCE NUMERALS

[0037] ​​1, frame base; 101, anchor bolt base; 1011, bolt groove A; 102, support table; 1021, positioning wedge-shaped strip; 1022, bolt groove B; 103, turnover seat; 2, rear sealing plate; 201, bolt groove C; 202, handle; 203, fixed distance support frame; 204, ring groove A; 205, key groove; 3, front sealing plate; 301, butt joint plate; 302, bolt groove D; 4, butt joint ring; 401, ring groove B; 402, butt joint protrusion; 5, inner disc; 501, fan-shaped hole; 502, bevel fan-shaped block; 503, middle hole; 6, medium cover; 601, high-temperature pipe; 602, low-temperature pipe; 7, heat exchange disc; 701, bevel fan-shaped part; 702, fan-shaped plane; 703, vertical support part; 704, gasket groove; 705, center ring; 706, threaded hole; 707, corrugated edge; 8, concentric ring-shaped gasket; 9, high-lift angle threaded shaft; 901, low-lift angle threaded shaft; 10, closed sleeve; 11, base clamp; 12, hand wheel nut; 13, clamping bolt; 14, S-shaped pipe; 1401, flow pipe. DETAILED DESCRIPTION

[0038] The details of the application can be more clearly understood with reference to the drawings and the following description. However, the specific embodiments of the application described herein are intended for purposes of illustration only and are not intended to be limiting in any way. These and other variations of the application will be apparent to those skilled in the art from the teachings herein. It is therefore intended that the scope of the application be governed by the following claims and their equivalents.

[0039] Unless otherwise defined, the terms "upper", "lower", "left", "right" and the like herein refer to the orientation of the application as shown in the drawings. Figure 1 The orientation of the application is shown in the drawings.

[0040] Please refer to Figures 1-9The embodiment provided by the present application provides a high-efficiency flow channel plate heat exchanger, which comprises a turnover mechanism, the turnover mechanism comprises a frame base 1, four groups of anchor bolt bases 101 are fixedly connected to the bottom of the frame base 1, bolt grooves A1011 are formed in the anchor bolt bases 101, a support table 102 is fixedly connected to the top of the front end of the frame base 1, positioning wedge-shaped strips 1021 are integrally formed on the top surface of the support table 102, a bolt groove B1022 is formed in the front end of the support table 102, a turnover seat 103 is rotationally connected to the top of the rear end of the frame base 1, and through holes for mounting bolts are formed in the turnover seat 103 in the horizontal direction, after the anchor bolt bases 101 at the bottom of the frame base 1 are mounted and fixed with anchor bolts, the bolts mounted in the bolt grooves B1022 and the bolt grooves D302 are disassembled, the turnover seat 103 and the heat exchanger part can be turned over by 90 degrees backward, after being turned over, the distance support frame 203 is horizontally attached to the ground, so that the heat exchanger part is in a vertical state, and the circular heat exchange fins can be conveniently disassembled in the horizontal state in the next step. After the pipe cap of the drainage pipe 1401 is vertically turned over and disassembled, the medium in the heat exchanger can also be completely discharged along the spiral path, and compared with the existing heat exchanger, the emptying degree is higher, and the liquid can be prevented from freezing in cold areas when the heat exchanger is stopped.

[0041] The closed structure comprises a rear sealing plate 2, a front sealing plate 3, a butt joint ring 4 and an inner disc 5, the top of the rear sealing plate 2 is connected with the turnover seat 103 through bolts, bolt grooves C201 are formed in the edges of the rear sealing plate 2, a handle 202 is fixedly installed on the top of the rear sealing plate 2, distance support frames 203 are fixedly connected to the left and right sides of the rear vertical surface of the rear sealing plate 2, a rear recessed ring groove A204 is formed in the front vertical surface of the rear sealing plate 2, key grooves 205 are formed in the inner side of the ring groove A204, clamping bolts 13 are arranged in the bolt grooves C201, the butt joint ring 4 is installed in the ring groove A204 through the key cooperation between the key grooves 205 and the outer curved surface of the butt joint ring 4, and the twist angle of the butt joint ring 4 is limited.

[0042] The front end bottom of the front sealing plate 3 is fixedly connected with a butt joint plate 301, the front end of the butt joint plate 301 is provided with bolt grooves D302, the butt joint ring 4 is arranged in the ring groove A204, ring grooves B401 are formed in the inner side of the butt joint ring 4, the outer curved surface of the butt joint ring 4 is provided with a positioning key, and butt joint protrusions 402 are arranged in the ring grooves B401, so that the twist angles of the heat exchange discs 7 at the top and the bottom can be limited through the butt joint ring 4 in the upper and lower two parts.

[0043] The inner disc 5 is fixedly connected to the inner side of the butt joint ring 4, four groups of fan-shaped holes 501 are respectively formed in each group of inner discs 5, a beveled fan-shaped block 502 is fixedly connected to the edge of each group of fan-shaped holes 501, a center hole 503 is formed at the center of the inner disc 5, a medium cover 6 is fixedly connected inside the fan-shaped hole 501, four groups of medium covers 6 are respectively installed outside each group of inner discs 5, a high-temperature pipe 601 and a low-temperature pipe 602 are respectively fixedly connected outside each two groups of medium covers 6, after the medium cover 6 is inserted into the fan-shaped hole 501 and welded and fixed, when the heat exchange disc 7 is butt jointed, the beveled fan-shaped block 502 can be sealed to close half of the beveled fan-shaped part 701, so that the inclination angle of the spiral sheet path entrance of the whole heat exchange disc 7 is more smooth with the angle of the water inlet and outlet pipe connection, and the medium flow in the flow channel is more efficient.

[0044] The high-efficiency flow channel plate structure comprises a heat exchange disc 7 and a concentric ring gasket 8. The heat exchange disc 7 can be processed by 3D printing or stamping. The heat exchange disc 7 is arranged on the inner side of the rear sealing plate 2 and the front sealing plate 3. The edge of the heat exchange disc 7 is provided with a corrugated edge 707 by stamping. The top surface and the bottom surface of the heat exchange disc 7 are respectively provided with four groups of inclined fan-shaped parts 701 by stamping. The shape of the inclined fan-shaped part 701 corresponds to that of the inclined fan-shaped block 502. The top surface and the bottom surface of each group of heat exchange discs 7 are respectively provided with four groups of fan-shaped planes 702. The side surface of the inclined fan-shaped part 701 is connected with the fan-shaped plane 702. The vertical connecting part between the fan-shaped planes 702 of the upper and lower parts of each group of heat exchange discs 7 is provided with a laser hole. The remaining connecting part after the hole is formed is a vertical supporting part 703. The central angle of the inclined fan-shaped block 502 is half of the central angle of the inclined fan-shaped part 701. The surface of the inclined fan-shaped part 701 is provided with turbulence corrugation by stamping. The central angle of the inclined fan-shaped part 701 is 74°. The central angle of the fan-shaped plane 702 is 16°. In terms of thread geometric parameters, the twist angle of the thread hole 706 from the tooth top to the tooth bottom in the circumferential direction of each center ring 705 is also 16°. The heat exchange disc 7 is fixedly connected with the center ring 705 at the center. The fan-shaped plane 702 and the center ring 705 are provided with a gasket groove 704. The gasket groove 704 corresponds to the shape of the concentric ring gasket 8. The concentric ring gasket 8 is connected in the gasket groove 704 in an interference fit. The gasket groove 704 can also be fixed by using an adhesive. The inner curved surface of the center ring 705 is provided with a thread hole 706. After the bolts at the dismounting butt joint plate 301 are removed, the rear sealing plate 2 is turned over. After the distance supporting frame 203 at the rear sealing plate 2 is supported to be horizontal with the ground foundation, the heat exchange disc 7 provided with the concentric ring gasket 8 is sleeved on the high-lift angle threaded shaft 9 through the low-lift angle threaded shaft 901. After the heat exchange disc 7 is rotated and falls to the bottom under the action of gravity, the heat exchange disc 7 is sequentially sleeved. According to the twist angle of 16°, the heat exchange disc 7 is rotated along the high-lift angle threaded shaft 9. The fan-shaped plane 702 at the bottom of the heat exchange disc 7 is attached to the fan-shaped plane 702 at the top of the adjacent heat exchange disc 7 below. After the heat exchange disc 7 is sequentially rotated and stacked, the inclined fan-shaped parts 701 in the heat exchange disc 7 after combination form four groups of sheet spiral channels. The high-temperature medium and the low-temperature medium are respectively input through the high-temperature pipe 601 and the low-temperature pipe 602 on the front and rear sides of the heat exchanger to perform pure counter-flow heat exchange. Compared with the vertical change of the flow angle of the traditional rectangular plate heat exchanger, the angle change of the overall medium flow path is small, the flow direction is smoothly transitioned, the flow angle change is small, the vortex and secondary flow generated by the same plate structure are weak, and it is not easy to form a static zone. The solute precipitation and scaling caused by the sharp change of the flow channel angle are reduced. The shear force of the fluid on the channel is larger, which can better carry away the deposited particles, further reduces the scaling rate, reduces the total resistance that needs to be overcome by the transmission pump through the reduction of the local water head loss, so that the pump provides a lower lift, ultimately leads to the reduction of the required power, and can reduce the power of the equipment driving the flow of the heat exchange medium, reduces the energy consumption and improves the efficiency.Depend on the horizontal plane of the sheet and the same concentric ring gasket 8 in the slot closed, compared with the traditional rectangular sheet alone rely on gasket insulation fluid more powerful.

[0045] The high angle threaded shaft 9 is fixedly connected inside the middle hole 503 of the inner disc 5 at the rear sealing plate 2, the high angle threaded shaft 9 is threadedly connected with the threaded hole 706, the low angle threaded shaft 901 is coaxially connected at the front end of the high angle threaded shaft 9, the low angle threaded shaft 901 has a smaller helix angle and diameter than the high angle threaded shaft 9, the high angle threaded shaft 9 is matched with the threaded hole 706, the torsion angle of the adjacent heat exchange discs 7 can be limited, the torsion angle of the abutting fan-shaped planes 702 of the adjacent heat exchange discs 7 is the same to ensure stable abutment and prevent medium leakage between the plates.

[0046] The low angle threaded shaft 901 is sleeved with an elastic sealing sleeve 10, the diameter of the rear half of the sealing sleeve 10 is smaller than that of the front half, the rear half of the sealing sleeve 10 is interference-fitted in the middle hole 503, the inner disc 5 is provided with a base clamp 11 through bolt installation, the base clamp 11 is connected with the high-temperature pipe 601 and the low-temperature pipe 602 through the clamp, two groups of hand wheel nuts 12 are arranged on the outside of the low angle threaded shaft 901 through threaded connection, after the heat exchange disc 7 is installed, the front sealing plate 3 is installed above, the sealing sleeve 10 is inserted into the circular hole in the center of the front sealing plate 3, the hand wheel nut 12 is installed on the low angle threaded shaft 901 to clamp the front sealing plate 3 and block the sealing sleeve 10, preventing the heat exchange disc 7 from being deviated during the turning process, after the assembled heat exchange disc 7 is turned to be horizontal with the ground, the clamping bolt 13 is installed to further fasten the structure of the heat exchange disc 7.

[0047] Referring to Figure 10 , example two: on the basis of example one, two groups of S-shaped pipes 14 are arranged between the opposite medium covers 6 at the rear sealing plate 2, the S-shaped pipe 14 is fixedly connected with a drain pipe 1401 at the rear end, the drain pipe 1401 is threadedly connected with a pipe cap at the rear end, the S-shaped pipe 14 is connected between the high-temperature fluid pipe and the low-temperature fluid pipe respectively, which can combine four groups of paths into two groups of pipes, the front sealing plate 3 forms the inlet and outlet pipe openings of the high-temperature path and the low-temperature path on one side, the flow path realizes pure counter-flow heat exchange, improves the heat exchange efficiency, and can reduce the pipe space.

[0048] Specific use and role of the embodiment: when the application is used, first, the foot bolt base 101 at the bottom of the frame base 1 is installed and fixed with the foot bolt, then the bolt in the bolt slot B1022 and the bolt slot D302 is disassembled, the turnover seat 103 and the heat exchanger part are turned over by 90 degrees, after turning over, the distance support frame 203 is horizontally attached to the ground, so that the heat exchanger part is in a vertical state, the key groove 205 and the outer curved surface of the butt joint ring 4 are matched, the butt joint ring 4 is installed in the ring groove A204, and is connected in the gasket groove 704, an adhesive can also be used for auxiliary fixing, the inner curved surface of the center ring 705 is provided with a threaded hole 706, the rear cover plate 2 is turned over after the bolt at the disassembly butt plate 301 is disassembled, the distance support frame 203 at the rear cover plate 2 is supported to the ground base to be horizontal, the heat exchange disc 7 with the concentric ring gasket 8 is installed on the high-angle threaded shaft 9 through the low-angle threaded shaft 901, the heat exchange disc 7 rotates and falls to the bottom under the action of gravity, the heat exchange disc 7 is sequentially sleeved, the heat exchange disc 7 rotates along the high-angle threaded shaft 9 at a torsion angle of 16°, the bottom sector plane 702 of the heat exchange disc 7 is attached to the top sector plane 702 of the adjacent heat exchange disc 7 below, the heat exchange disc 7 is sequentially rotated and stacked, so that the inclined sector part 701 in the heat exchange disc 7 forms four groups of sheet spiral channels connected, after the heat exchange disc 7 is installed, the upper front cover plate 3 is installed, the closure sleeve 10 is inserted into the circular hole in the center of the front cover plate 3, the hand wheel nut 12 is installed on the low-angle threaded shaft 901 to clamp the front cover plate 3 and block the closure sleeve 10, the heat exchange disc 7 is prevented from being deviated during the turning over process, the assembled heat exchange disc 7 is turned over to be horizontal to the ground, the clamping bolt 13 is installed to further fasten the heat exchange disc 7 structure, so that the heat exchange disc 7 forms a spiral sheet pipe heat exchange structure as a whole.

Claims

1. A high-efficiency flow channel plate heat exchanger, comprising: The flipping mechanism includes a frame base (1), four sets of anchor bolt bases (101) are fixedly connected to the bottom of the frame base (1), the anchor bolt bases (101) are provided with bolt grooves A (1011), a support platform (102) is fixedly connected to the top front end of the frame base (1), a positioning wedge strip (1021) is integrally formed on the top surface of the support platform (102), a bolt groove B (1022) is provided at the front end of the support platform (102), and a flipping seat (103) is rotatably connected to the top rear end of the frame base (1), the flipping seat (103) has a through hole for installing bolts in the horizontal direction; The closed structure includes a rear sealing plate (2), a front sealing plate (3), a docking ring (4), and an inner plate (5). The top of the rear sealing plate (2) is connected to the flip seat (103) by bolts. A bolt groove C (201) is provided at the edge of the rear sealing plate (2). A handle (202) is fixedly installed on the top of the rear sealing plate (2). A fixed-distance support frame (203) is fixedly connected to the left and right sides of the rear facade of the rear sealing plate (2). A rearward recessed annular groove A (204) is provided on the front facade of the rear sealing plate (2). A keyway (205) is provided inside the annular groove A (204). A clamping bolt (13) is provided inside the bolt groove C (201). The high-efficiency flow channel plate structure includes a heat exchange plate (7) and a concentric annular gasket (8). The heat exchange plate (7) is disposed inside the rear sealing plate (2) and the front sealing plate (3). The edge of the heat exchange plate (7) is provided with a corrugated edge (707) by stamping. The top and bottom surfaces of the heat exchange plate (7) are respectively provided with four sets of inclined fan-shaped parts (701) by stamping. The inner plate (5) is fixedly connected to the inner side of the docking ring (4). Each set of inner plates (5) has four sets of fan-shaped holes (501) inside. Each set of fan-shaped holes (501) has an inclined fan-shaped block (502) fixedly connected to the edge of the edge of the fan-shaped hole (501). The center hole (503) is provided at the center of the inner plate (5).

2. The high-efficiency flow channel plate heat exchanger as described in claim 1, characterized in that: The front sealing plate (3) is fixedly connected to the bottom of the front end of the bottom end of the front ...

3. The high-efficiency flow channel plate heat exchanger as described in claim 1, characterized in that: The docking ring (4) is disposed inside the annular groove A (204), and an annular groove B (401) is provided on the inner side of the docking ring (4). A positioning key is provided on the outer curved surface of the docking ring (4), and a docking protrusion (402) is provided inside the annular groove B (401).

4. The high-efficiency flow channel plate heat exchanger as described in claim 1, characterized in that: The fan-shaped hole (501) is fixedly connected to a medium cover (6). Each set of inner disks (5) is equipped with four sets of medium covers (6) on the outside. Each pair of medium covers (6) is fixedly connected to a high-temperature tube (601) and a low-temperature tube (602).

5. The high-efficiency flow channel plate heat exchanger as described in claim 1, characterized in that: The shape of the inclined fan-shaped part (701) corresponds to the inclined fan-shaped block (502). Each heat exchange plate (7) has four sets of fan-shaped planes (702) on its top and bottom surfaces. The surface of the inclined fan-shaped part (701) is stamped with turbulence ripples. The side of the inclined fan-shaped part (701) is connected to the fan-shaped plane (702). The vertical connection between the fan-shaped planes (702) of the upper and lower parts of each heat exchange plate (7) is opened by laser. The remaining connection after opening is a vertical support part (703). The central angle of the inclined fan-shaped block (502) is half the central angle of the inclined fan-shaped part (701).

6. The high-efficiency flow channel plate heat exchanger as described in claim 5, characterized in that: A central ring (705) is fixedly connected to the center of the heat exchange plate (7). A gasket groove (704) is opened between the fan-shaped plane (702) and the central ring (705). The gasket groove (704) corresponds to the shape of the concentric annular gasket (8). The concentric annular gasket (8) is interference-fitted into the gasket groove (704). A threaded hole (706) is opened on the inner curved surface of the central ring (705).

7. The high-efficiency flow channel plate heat exchanger as described in claim 6, characterized in that: A high-lift angle threaded shaft (9) is fixedly connected inside the central hole (503) of the inner plate (2) of the rear sealing plate (2), and the high-lift angle threaded shaft (9) is threadedly connected to the threaded hole (706).

8. The high-efficiency flow channel plate heat exchanger as described in claim 7, characterized in that: The front end of the high-helix angle threaded shaft (9) is coaxially connected to a low-helix angle threaded shaft (901), and the helix angle and diameter of the low-helix angle threaded shaft (901) are both smaller than those of the high-helix angle threaded shaft (9).

9. The high-efficiency flow channel plate heat exchanger as described in claim 8, characterized in that: The low-rise angle threaded shaft (901) is fitted with an elastic closed sleeve (10) on its outer side. The diameter of the rear half of the closed sleeve (10) is smaller than that of the front half. The rear half of the closed sleeve (10) is interference-fitted into the middle hole (503). The inner plate (5) is bolted with a base clamp (11). The base clamp (11) is connected to the high temperature pipe (601) and the low temperature pipe (602) by clamps. The low-rise angle threaded shaft (901) is provided with two sets of handwheel nuts (12) by threaded connection on its outer side. Two sets of S-shaped pipes (14) are provided between the media covers (6) opposite each other at the rear sealing plate (2). The rear end of the S-shaped pipe (14) is fixedly connected with a drain pipe (1401). The rear end of the drain pipe (1401) is threadedly connected with a pipe cap.

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